{
\def\sym#1{\ifmmode^{#1}\else\(^{#1}\)\fi}
\begin{tabular}{l*{6}{c}}
\toprule
                    &\multicolumn{6}{c}{Dependent variable: $X_{ni}/X_n$}                                                                             \\\cmidrule(lr){2-7}
                    &\multicolumn{1}{c}{(1)}         &\multicolumn{1}{c}{(2)}         &\multicolumn{1}{c}{(3)}         &\multicolumn{1}{c}{(4)}         &\multicolumn{1}{c}{(5)}         &\multicolumn{1}{c}{(6)}         \\
\midrule
$\delta^c \times z_{ni}^{(1)}$&      -0.035\sym{***}&                     &      -0.040\sym{***}&                     &      -0.043\sym{***}&                     \\
                    &    (0.0069)         &                     &    (0.0091)         &                     &    (0.0095)         &                     \\
\addlinespace
$\delta^c \times z_{ni}^{(2)}$&                     &      -0.028\sym{***}&                     &      -0.034\sym{***}&                     &      -0.037\sym{***}\\
                    &                     &    (0.0046)         &                     &    (0.0071)         &                     &    (0.0074)         \\
\midrule
Country FE          &         Yes         &         Yes         &                     &                     &                     &                     \\
Upstream $\times$ Downstream FEs&         Yes         &         Yes         &         Yes         &         Yes         &         Yes         &         Yes         \\
Upstream $\times$ Country FEs&                     &                     &         Yes         &         Yes         &         Yes         &         Yes         \\
Downstream $\times$ Country FEs&                     &                     &                     &                     &         Yes         &         Yes         \\
\midrule$R^2$       &       0.449         &       0.449         &       0.531         &       0.531         &       0.537         &       0.537         \\
Observations        &      133525         &      133525         &      133525         &      133525         &      133525         &      133525         \\
\bottomrule
\end{tabular}
}
